As far as the wiring for a pool or something else going thru a bedroom I really don't see the need for the AFCI. It is not serving any of the area requiring AFCI protection. What is the kitchen or bathroom circuits went thru the bedroom? Could the AHJ reasonably expect to now require AFCI protection?
This reminds me of the closet lighting that was exempt during one of the early requirements for AFCIs in the bedrooms. I also remember that switches in bedrooms for floodlights outside did not require AFCI protection.
